EP 0911235 B1 20030326 - Device for presuming accumulator pressure operative with pressure switches
Title (en)
Device for presuming accumulator pressure operative with pressure switches
Title (de)
Gerät zum Abschätzen eines Speicherdrucks mittels Druckschaltern
Title (fr)
Dispositif d' estimation de la pression dans un accumulateur utilisant des interrupteurs sensibles à la pression
Publication
Application
Priority
JP 30978397 A 19971024
Abstract (en)
[origin: EP0911235A2] In a device for presuming pressure of a pressure accumulator (48) prepared for accumulating a fluid under a compression of an elastic pressurization medium to selectively supply the fluid therefrom at a raised pressure with a timely supplement of the fluid thereto by a pump (38), the device has a first pressure switch (SW1) for detecting a first predetermined pressure level of the accumulator (48) and a second pressure switch (SW2) for detecting a second predetermined pressure level of the accumulator (48) higher than the first pressure level, and a pressure increase gradient (Kacc) is calculated based upon the difference between the first and second pressure levels and the time duration lapsed for pumping up the pressure from the first pressure level to the second pressure level. <IMAGE>
IPC 1-7
IPC 8 full level
B60T 17/22 (2006.01); B60T 8/24 (2006.01); B60T 8/40 (2006.01); B60T 8/44 (2006.01); B60T 8/48 (2006.01); F15B 1/033 (2006.01)
CPC (source: EP US)
B60T 8/40 (2013.01 - EP US); B60T 8/404 (2013.01 - EP US); B60T 8/4045 (2013.01 - EP US); B60T 8/441 (2013.01 - EP US); B60T 8/4836 (2013.01 - EP US); F15B 1/033 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0911235 A2 19990428; EP 0911235 A3 19990818; EP 0911235 B1 20030326; DE 69812529 D1 20030430; DE 69812529 T2 20040129; JP H11124025 A 19990511; US 6092878 A 20000725
DOCDB simple family (application)
EP 98119503 A 19981015; DE 69812529 T 19981015; JP 30978397 A 19971024; US 16541798 A 19981002